Hi,
I've attempted the mock quiz, and for questions 15-16 where we have to give a "complex" fraction (not so complex, but there exists many ways to write it, and especially the character \alpha..), I can't manage to get an accepted solution, even though I am quite confident that my answer is correct (because this exercise was in the hands-on). I am therefore wondering if there will be instructions as how to write solutions non-ambiguously, or if there will be some manual validation of the answers.
Thanks,
Elsa